National parks: Howard Levitt of the Golden Gate National Recreation Area talks about the GGNRA’s goal of “bringing parks to the people.” [7:30 p.m., Jewish Community Center, 3200 California St., S.F.]

PUBLIC LIBRARIESDogs and safety: SPCA-presented program, for ages 3 and up, features a dog, a human and information about safety issues relating to dogs. [11 a.m., North Beach Branch, 2000 Mason St., S.F.]